Support update/execution of any (spring boot) executable jar

edvin · Feb 17, 2018 · cf05665 · cf05665
1 parent 8c8dfa2
commit cf05665
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Showing 2 changed files with 29 additions and 113 deletions.
diff --git a/src/main/java/fxlauncher/JFXPanelSwingLauncher.java b/src/main/java/fxlauncher/JFXPanelSwingLauncher.java
diff --git a/src/main/java/fxlauncher/Launcher.java b/src/main/java/fxlauncher/Launcher.java
@@ -16,6 +16,7 @@
 
 import java.io.*;
 import java.net.URI;
+import java.nio.file.Path;
 import java.util.*;
 import java.util.logging.Level;
 import java.util.logging.Logger;
@@ -46,7 +47,9 @@ protected void createApplication(Class<Application> appClass) {
             PlatformImpl.runAndWait(() ->
             {
                 try {
-                    app = appClass.newInstance();
+                    if (appClass.isAssignableFrom(Application.class)){
+                        app = appClass.newInstance();
+                    }
                 } catch (Throwable t) {
                     reportError("Error creating app class", t);
                 }
@@ -157,11 +160,9 @@ public void start(Stage primaryStage) throws Exception {
 
     private void launchAppFromManifest(boolean showWhatsnew) throws Exception {
         superLauncher.setPhase("Application Environment Prepare");
-        ParametersImpl.registerParameters(app, new LauncherParams(getParameters(), superLauncher.getManifest()));
-        PlatformImpl.setApplicationName(app.getClass());
-        superLauncher.setPhase("Application Init");
+
         try {
-            app.init();
+            initApplication();
         } catch (Throwable ex) {
             superLauncher.reportError("Error during app init", ex);
         }
@@ -184,7 +185,7 @@ private void launchAppFromManifest(boolean showWhatsnew) throws Exception {
                     stage.close();
                 }
 
-                app.start(primaryStage);
+                startApplication();
             } catch (Throwable ex) {
                 superLauncher.reportError("Failed to start application", ex);
             }
@@ -220,4 +221,26 @@ public void stop() throws Exception {
         if (app != null)
             app.stop();
     }
+
+    private void initApplication() throws Exception {
+        if (app != null){
+            app.init();
+        }
+    }
+
+    private void startApplication() throws Exception {
+        if (app != null){
+            ParametersImpl.registerParameters(app, new LauncherParams(getParameters(), superLauncher.getManifest()));
+            PlatformImpl.setApplicationName(app.getClass());
+            superLauncher.setPhase("Application Init");
+            app.start(primaryStage);
+        } else {
+            // Start any executable jar (i.E. Spring Boot);
+            List<LibraryFile> files = superLauncher.getManifest().files;
+            String cacheDir = superLauncher.getManifest().cacheDir;
+            String command = String.format("java -jar %s/%s", cacheDir, files.get(0).file);
+            log.info(String.format("Execute command '%s'",command));
+            Runtime.getRuntime().exec(command);
+        }
+    }
 }